add @exclusive tag to prevent cluster-mutating tests from running in parallel

Issue: ZENKO-5228

Author: delthas

tests/ctst/common/hooks.ts

@@ -36,7 +36,21 @@ const noParallelRun = atMostOnePicklePerTag([
     ...replicationLockTags
 ]);
 
-setParallelCanAssign(noParallelRun);
+const EXCLUSIVE_TAG = '@Exclusive';
+
+function hasTag(pickle: { tags: readonly { name: string }[] }, tagName: string): boolean {
+    return pickle.tags.some(t => t.name === tagName);
+}
+
+setParallelCanAssign((pickle, runningPickles) => {
+    if (runningPickles.some(p => hasTag(p, EXCLUSIVE_TAG))) {
+        return false;
+    }
+    if (hasTag(pickle, EXCLUSIVE_TAG)) {
+        return runningPickles.length === 0;
+    }
+    return noParallelRun(pickle, runningPickles);
+});
 
 Before(async function (this: Zenko, scenario: ITestCaseHookParameter) {
     this.resetSaved();

tests/ctst/features/azureArchive.feature

@@ -45,6 +45,7 @@ Feature: Azure Archive
     @Flaky
     @AzureArchive
     @ColdStorage
+    @Exclusive
     Scenario Outline: Create, read, update and delete azure archive location
     Given an azure archive location "<locationName>"
     And a "<versioningConfiguration>" bucket
@@ -257,6 +258,7 @@ Feature: Azure Archive
     @Flaky
     @AzureArchive
     @ColdStorage
+    @Exclusive
     Scenario Outline: Pause and resume archiving to azure (PutObject after pause)
     Given a "<versioningConfiguration>" bucket
     And a transition workflow to "e2e-azure-archive" location

tests/ctst/features/bucketWebsite.feature

@@ -3,6 +3,7 @@ Feature: Bucket Websites
     @2.6.0
     @PreMerge
     @BucketWebsite
+    @Exclusive
     Scenario Outline: Bucket Website CRUD
         # The scenario should test that we can put a bucket website configuration on a bucket
         # send an index.html

tests/ctst/features/pra.feature

@@ -5,6 +5,7 @@ Feature: PRA operations
     @Dmf
     @PRA
     @ColdStorage
+    @Exclusive
     Scenario Outline: PRA (nominal case)
     # Prepare objects in the primary site
     Given a "<versioningConfiguration>" bucket